// copyright (C) 2026 Allen Hill <allenofthehills@gmail.com>
// SPDX-License-Identifier: GPL-3.0-or-later

#pragma once

#include <concepts>
#include <cstdint>
#include <memory>

#include "avclan.h"
#include "frame.hpp"
#include "stdshim.hpp"

namespace avclan {

enum class Device : uint8_t {
  LAN = 0x00,
  COMM_CTRL = 0x01,
  COMMUNICATION_V1 = 0x11,
  COMMUNICATION_V2 = 0x12,
  SW_AUDIO = 0x21,
  SW_NAME = 0x23,
  SW_CONVERTING = 0x24,
  CMD_SW = 0x25,
  STATUS = 0x31,
  INFO_DISPLAY2 = 0x32,
  BEEP_HU = 0x28,
  BEEP_SPEAKERS = 0x29,
  FRONT_PSNG_MONITOR = 0x34,
  CD_CHANGER2 = 0x43,
  BLUETOOTH_TEL = 0x55,
  INFO_DRAWING = 0x56,
  NAV_ECU = 0x58,
  CAMERA = 0x5C,
  CLIMATE_DRAWING = 0x5D,
  AUDIO_DRAWING = 0x5E,
  TRIP_INFO_DRAWING = 0x5F,
  TUNER = 0x60,
  TAPE_DECK = 0x61,
  CD_SINGLE = 0x62,
  CD_CHANGER = 0x63,
  AUDIO_AMP = 0x74,
  GPS = 0x80,
  VOICE_CTRL = 0x85,
  XM_TUNER = 0xC0,
  CLIMATE_CTRL_DEV = 0xE0,
  TRIP_INFO = 0xE5,
};

template <class T>
concept DeviceInterface =
    requires { std::integral_constant<Device, T::id>{}; } &&
    requires(T dev, const Frame *in, Frame *out,
             expected<std::unique_ptr<Frame>, detail::SendError> exp) {
      dev.init();
      dev.handle(in, out);
      dev.enable(out);
      {
        dev.react(std::move(exp))
      } -> std::same_as<std::unique_ptr<Frame>>;

      { dev.pending() } -> std::convertible_to<bool>;
      // Devices must clear `pending()` after `emit()` is called
      dev.emit(out);
    };
} // namespace avclan